Rahim Dehkharghani

Many approaches have been proposed to extract the sentiment of individuals from documents written in natural languages in recent years. The majority of these approaches have focused on English, while resource-lean languages such as Persian suffer from the lack of research work and language resources. Due to this gap in Persian, the current work is accomplished to propose a hybrid method for sentiment analysis which has been applied in Persian. His method takes advantage of local discourse information and external knowledge bases, and also covers several language issues such as negation and intensification, and addresses different granularity levels, namely word, aspect, sentence, phrase, and document-levels. In order to evaluate the performance of the proposed approach, a Persian dataset is collected from Persian hotel reviews referred to as hotel reviews. The experimental results approve the effectiveness of the proposed approach when compared to related works.